TetSectionData
What the threshold and the cut planes of one tet volume draw (field-presentation §FVE-8, §FVE-9, §FVG-11), built on the thread pool and carried to the worker as TetRenderData is. Immutable once built: a new request gives a new object, and a consumer detects the change by pointer.
In the namespace construct::asset. Declared in src/libs/libconstruct/construct/asset/TetSections.hpp.